@misc{indiciae765c162e13e6,
  title = {Weak dynamical effects in the Uranian ring system},
  author = {Freedman, A. P. and Tremaine, S. and Elliot, J. L.},
  year = {1983},
  url = {https://ntrs.nasa.gov/citations/19830058386},
  note = {Source identifier: 19830058386}
}